Roboguru

Diketahui space matriks space straight A equals open parentheses table row 1 2 row 3 4 end table close parentheses comma space straight B equals open parentheses table row a 3 row cell negative 2 end cell b end table close parentheses comma space straight C equals open parentheses table row cell negative 2 end cell cell negative 3 end cell row cell negative 2 end cell cell negative 3 end cell end table close parentheses comma space dan space straight A. straight B equals straight C. space Nilai space dari space a plus b equals....

  1. -6

  2. -5

  3. -1

  4. 1

  5. 5

Jawaban:

open parentheses table row 1 2 row 3 4 end table close parentheses open parentheses table row a 3 row cell negative 2 end cell b end table close parentheses equals open parentheses table row cell negative 2 end cell cell negative 3 end cell row cell negative 2 end cell cell negative 3 end cell end table close parentheses  open parentheses table row cell left parenthesis 1 right parenthesis left parenthesis a right parenthesis plus 2 left parenthesis negative 2 right parenthesis end cell cell left parenthesis 1 right parenthesis left parenthesis 3 right parenthesis space plus 2 left parenthesis b right parenthesis end cell row cell left parenthesis 3 right parenthesis left parenthesis a right parenthesis plus plus space left parenthesis 4 right parenthesis left parenthesis negative 2 right parenthesis end cell cell left parenthesis 3 right parenthesis left parenthesis 3 right parenthesis plus left parenthesis 4 right parenthesis left parenthesis b right parenthesis end cell end table close parentheses equals open parentheses table row cell negative 2 end cell cell negative 3 end cell row cell negative 2 end cell cell negative 3 end cell end table close parentheses  open parentheses table row cell a minus 4 end cell cell 3 plus 2 b end cell row cell 3 a minus 8 end cell cell 9 plus 4 b end cell end table close parentheses equals open parentheses table row cell negative 2 end cell cell negative 3 end cell row cell negative 2 end cell cell negative 3 end cell end table close parentheses    a minus 4 equals negative 2 rightwards arrow a equals 2  3 plus 2 b space equals space minus 3 space rightwards arrow b equals negative 6 over 2 equals negative 3  Jadi space nilai space a plus b space equals space 2 minus 3 space equals space minus 1

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